First of all, "See keel elabbaltic" is total non-sense, maybe you meant "Seda keelt räägitakse Baltimaades". Second, the texts that are given contain too easy hints, such as "Brazillians" for Portuguese and "Gdanska" for Polish.
i'm pretty sure it's "wie viel kostet das", at least that's what i learned at school. i enjoyed this quiz though, got them all first try but spent a solid minute guessing before i got albanian lol